The attempted suicide victim is supposed to have slashed her wrists, but there is no blood anywhere on her wrists or the boys' car. If that were the case, the bleeding would have been profuse. However, at the time, television producers avoided showing as much blood as possible, especially for a show watched by kids or at the time what was considered family hour.
When the officer presses the button to open the door to let Louie into booking, the buzzing sound continues after the button is released.